THE block of bone breccia in which the beautiful skull of Paranthropus was found has already yielded us the distal end of a humersus, the proximal end of an ulna and two toe bones. The matrix on which the maxilla rested has remained until recently untouched, as it retains the excellent impressions of the premolars and the first and second molars. In this matrix there was exposed a little piece of bone which I thought might prove interesting. On following it in, I found it was part of the well-preserved second metaearpal of the left hand. Close to it I also found two phalangeal bones, and in another piece of matrix much of another phalangeal bone. The distal end of the metaearpal lay within a millimetre of the maxilla.